Saunders' College Text-Books 



cFiiirlsimidl^i Ei©l©gy 



Biology: General and Medical. By Joseph McFarlanu, M. D., 

 Professor of Pathology and Bacteriology, University of Pennsyl- 

 vania. i2mo of 457 pages, illustrated. Cloth, $i.7S net. 



New (jd) Edition — Published January, igij. 



This work is particularly adaptable to the requirements of scientific 

 courses. There are chapters on the origin of life and its manifesta- 

 tions, the cell and cell division, reproduction, ontogenesis, conformity 

 to type, divergence, structural and blood relationship, parasitism, mu- 

 tilation and regeneration, grafting, senescence, etc. 

 Prof. W. R. McConnell, Pennsylvania State College: "It has some 

 admirable features, the most valuable of which is the careful resume of 

 the subjects of heredity and evolution." 



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Invertebrate Zoology. By Oilman A. Drew, Ph. D., Assistant Di- 

 rector of the Marine Biological Laboratory, Woods Hole, Mass. 

 i2mo of 213 pages. Cloth, $1.25 net. Second Edition — July, 191 3 



Professor Drew's work gives the student a working knowledge of com- 

 parative anatomy and leads him to an appreciation of the adaptation 

 of the animals to their environments. It is a practical work, express- 

 ing the practical knowledge gained through experience. The type 

 method of study has been followed. 



Prof. John M. Tyler, Amherst College: "It covers the ground well^ 

 is clear and very compact. The table of definitions is excellent." 



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Economic Zoology. By L. S. Daugherty, M. S., Ph. D., Professor 

 of Science, Missouri Wesleyan College; and M. C. Daugherty. 

 Part I— Field and Laboratory Guide: 12010 of 276 pages, inter- 

 leaved. Cloth, $1.25 net. Part II — Principles: i2mo of 406 

 pages, illustrated. Cloth, $2.00 net. December, IQ12. 



Not only does this work give the salient facts of structural zoology and 

 the development of the various branches, but abo the natural history 

 — the life and habits. It emphasizes the economic phase throughout. 



Prof. V. E. Shelford, University of Chicago: "It has many merits 

 and is the best book of the kind on the market." 



